Printing-machine



(No Model.) 8 Sheets-Sheet 1.

J. L. POALK.

BRINTING MACHINE. No. 339,687. Patented Apr. 13, 1886 .Z'zzvzzzar: ZZE'M Tins mmuan n um. Was-Hugh! ac.

(No Model.) 8 Sheets-Sheet 2. JFL. POALK.-

PRINTING MACHINE.

No. 339,687. Patented Apr. 13, 1886.

N ETERS Phato-umographar. walhingiolx D.C-

8 SheetsSkeet 3.

(No Model.)

J.L.POALK. PRINTING MAGHINE.

No.- 339,687. Patented Apr. 18, 1886.

N PETERS. Fhulolhhugnphm'. Washinglum D. c.

( No Model.)

-8 Sheets-Sheet 4.- J. L. POALK.

PRINTING MAGHINE.

Pat ented Apr. 1'3, 1886.

N. PEYERS Pnwum n m. wmmhw'n. n. c.

LNG Model.) 8 Sheets-Sheet 5.

' J. L. POALK.

PRINTING MACHINE. No. 339,687. Patented Apr. 13, 1886.

Inventor (No Model.) 8 Sheets-Sheet 6. J. L. PONALK.

PRINTING MACHINE.

No. 389,687. PatentefiApr. 13, 1886.

N. wnzns .mwwm u m, wishanym n. (L

(No Model.) a Sheets-Sheet 7. J. L. vPOALK.

PRINTING MACHINE. 7 No. 339,687. Patented Apr. 13, E86.

(No Model.) 8 Sheets-Sheet 8. J. L. POALK.

PRINTING 'MAGHINE. No. 339,687. PatentedApr. 18, 1886.

17 Fz'yli.

N. PUERS. P'nolwLiihcgraphun Wahlngkm. D. C.

the adjustment of the matrix,

Unrrnn STATES PATENT rrrcn.

PRINTING- MACHINE.

SPECIFICATION forming part of Letters Patent No. 339,687, dated April 18, 1.886. Application filed March 27, 1885. Serial No. 160,374. (No model.)

T 0 mZZ whom it may concern:

Be it known that I, J AMES LANE POALK, of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented Improvementsin Printing-Machines, of which the following is the specification.

Myinvention is a printing machine espe cially adapted for embossing matrices of soft metal; and my invention consists in certain improvements in means for rotating, arresting, and making the impressions with a typewheel, fully set forth hereinafter, and also in means for properly spacing the letters,and for facilitating the manipulation of the machine, and for securing a duplicate copy of the impressions.

In the drawings, Figure l is a side elevation in part section of my improved printing-machine. Fig. 2 is a central sectional elevation. Fig. 3 is a plan. Fig. 4 is a part side view in part sect-ion. Fig. 5 is a front elevation. Fig. 6 is a rear elevation showing the stationary and part of the movable frame and impressionlever. Fig. 7 is the same as Fig. 6, the parts being in a different position, with the addition of a driving-pulley and spring-support. Figs. 8 and 9 are side and sectional views of the drivingpulley. Fig. 10 isaface view of the driving-pulley; Fig. 11, a face View of the stop-arm; Fig. 12, a side View showing a modified impression device; Fig. 13, a view illustrating a modification forprinting upon a curved-face matrix; Figs. 14 and 15, views illustrating the construction of the matrix.

The frame of the machine consists, essen tially, of two parts, the stationary part, composed of the base A and uprights B B, and the swinging frame 0, consisting of parallel bars a c, pivoted by a pin, I), to the upright 13, and connected at their outer ends by a cross-pin, c.

The stationary portion of the frame carries the bed or platen for supporting the matrix sheet or block and thedevices for feeding the same in different directions, and the movable frame carries the typewheel and the devices for rotating the same,for arresting it with any type in position to make an impression, and for throwing it downward toward the platen in order to make such impression. The

' shaft D,

typewheel D is secured to a shaft, D, which turns in bearings of the frame 0, and is socured therein by detachable cap pieces a", which, when the frame is thrown over to the position shown in Fig. 6, may be readily removed by withdrawing the securing-bolts 3,to permit the disconnection of the shaft and its appurtenances from-the swinging frame. The appurtenances carried by the shaft D are the printingwheels D D'-, a feedcam, l), a driving-pulley, D, which turns loosely upon the shaft, and a stop-arm, D which is secured immovably to or forms part of the shaft, and between the drivingpulley D and the stoparm I) is africtional device, which causes the stop-arm and its shaft to be carried with the pulley until sufficient power is applied to the stop-arm to arrest it, when the motion of the pulley will be continued independently of the which will remain at rest.

In order to arrest the movement of the shaft and typewheel in any ploy a number of keys or stops corresponding to the number of types or signs upon the periphery of the typewhcel, and I so arrange the stops that any one of the same may be projected into the path of the stop-arm D to arrest its motion, in which case the type which is lowest upon the edge of the type-Wheel will correspond to the designation of the key by which the said stop was moved into position.

One arrangement of stops and operatingkeys which I have found to be effective is illustrated in the drawings, in which d (1 are arms extending from the side of the bar a of the swinging frame, and snpportinga disk, d, parallel and concentric with the driving pulley D, and a key-board, E, at an angle to the disk (1, the key-board carrying a series of keys, E, arranged in a circle, each consisting of a head, 6, and a shank or bar, 6', extending through and sliding in an opening in the key board, and bent and slotted to receive a pin, e connecting it with a horizontal stop-pin, f, sliding in the disk cl. Around each bar 6 is coiled a spring e, which tends to throw the key outward and to hold the stop f with its inner end flush with the inner face of the disk (1. The pulley D" is rotated by means of a band or belt passing to any suitable drivingpulley, and carries with it, in consequence of desired position, I emv Figs. 8 and 9.

the frictional connection aforesaid, the stoparm D and the shaft D, the rotation of which will be continued until one of the keys E is pushed .inward toward the key-board,when the corresponding stop f will be projected, the stop-arm D will strike the same, and the motion of the shaft D and its appurtenances will at once be arrested. The type which is lowermost upon the type-wheel D will now correspond to the designation of the key which was pushed inward, and said type will make an impression upon the matrix below it'when the type-wheel is thrown downward by depressing the swinging frame 0, which may be effected as hereinafter set forth.

The frictional connection between the pulley -D* and the stop -arm D is illustrated in At the outerside of the pul-. ley D is an annular recess, into 'which is sprung a friction-ring, D consisting of, one, two,or more parts, so'held in place as to cause them to bear frictionally against the inner face of a lug, 9, extending from thearm D As shown, the ring consists of two parts with overlapping ends, as at x, at one side,and bearing with their other adjacent ends against a pin, 4, projecting from the pulley at the opposite side, which pin prevents the ring from revolving, and each section of the ring has inwardly-projecting lipsj, upon which bears a retaining-plate,k, and the inner edge of the ring projects into an annular recess in the face of the driving-pulley. As the drivingpulley turns, the tendency of the ring to expand causes it to bear against the lug g with such friction as to carry the arm and shaft with the rotation of'the wheel; but when the arm is brought against the positive stop the ring yields and turns in contact with the lug,

1n order-to secure greater positiveness of action, the friction-ring may be slightly flattened at one or more points, as at :0, Fig. 8,

. the contact of the flattened portion'with the lug tending to prevent the slipping of the ring beneath the lug, except when the armis positively arrested.

I have shown the above-described frictional connection as one which I have found effectarrangement of keys may be employed. For.

instance, the stop-pins f may themselves constitute: the keys, suitable springs being connected theretoto throw them outward.

In the construction shown in the drawings the frame 0 and type-wheel are held in positionwith the type free from contact with. the matrix by a spring-support, a spiral spring, 5, being shown connected at the upper. end to a block, 6, fitting detachably asocket in the upper end of the standard B, and at-. tached at the lower end to theend .of the. frame 0. .The standard B is provided with a shoulder, 3 arranged to be struck by the cross pin 0 when the lower type is at the limit of vices depending to a certain extent upon the force with which the type is to be carried downward. One means of effecting the downward movement of the frame is illustrated in the drawings in connection with a cam-groove, 7, in the rear face of a the driving-pulley D*, the said cam-groove receiving a stud, 8, upon a bell-crank lever, F, swinging upon the pin 1), with its lowerend opposite a movable stoppin,.9. .The stop-pin 9slides in the standard B, and is surrounded by a spring, 10, which causes its inner end to bear against alever, G, pivoted to an arm, G, projecting from the standard and hearing at its lower end upon a sliding pin, 12, the opposite end of which bears upoua short arm of a crank-key, H, pivoted to a standard, H, upon the bed-plate A. XVhen the key H is depressed by the operator, which is .done after one of the keys E has been thrown inward and the motion of the type-wheel has been arrested, the stop-pin 9 will be thrown outward opposite the edge of the lever F, and the rotation of the drivingpulley D .Will carry the outwardly-projecting portion of the groove 7 opposite the pin 8, and, asthe lever Fis now held ina stationary position, the cam-wheel and frame will be thrown downward, after which the operator releases the key H, when the spring 10 will carry the pin 9 back out of the way of the lever F, which will then vibrate without causing any movement of the frame 0.

.When thepulley D is rotated rapidly, the

.upon the edge of the arm D opposite a recess,

an, adapted to receive thestop-pin, the said block having a beveled edge, which, when brought in contact with the stop-pin, causes the block to, be thrown inwa'rd,w hile a spring, m, bearing, upon the block, throws it outward as soonas the stop-pin passes into the recess 00?, and thereby locks the arm to the pin until the latter is withdrawn longitudinallyupon releasing its operating-key. The platen 11* should ordinarilybe capable of two movements: First, thelateral movement in the direction. of the arrow 1, Fig. 5, which must take place after each imprint and to a sufficient extent to permit the succeeding type to impress the matrix sheet or block T, carried by the platen at the proper distance from the preceding impression; and, secondly, a longitudinal movement in the direction of the arrow 2, Fig. 1, which movement must be made after one line of impressions is completed, to bring the sheet or block in position to receive a second or lower line of impressions. The first movement I term the feed, and it dif fers from the second in being unequal in its character, in consequence of the irregular width of the letters of the alphabet, as illustrated by the letters m and i.

In arranging the type upon the periphery of the wheel they are spaced so that one side of each letter will be the same distance from the same side of the next preceding and following letter, as is common in some printingmachines, and each type is arrested in position to make the best impression upon the matrix carried by the platen. The feed takes place after the type rises from the matrix, and

is varied according to the width of the impression last made. To effect this result, I provide the machine with a feed-regulating cam, D before alluded to, which is carried with the type-wheel by the shaft I), and which is so constructed as to vary the feed according to the letter last impressed upon the matrix.

Different mechanisms may be interposed between the feed-regulating cam and platen. I will now describe that which I have found eiiective. The platen II is carried by a laterally-sliding bed 1, moving upon a dovetailed guide, 13, upon the baseplate A, and from this bed projects laterally a rack-bar, 1 which engages with a toothed feed-wheel, I, turning upon a stud, let, projecting from astandard, J. The feed-wheel I is provided with an annular rib, p, upon which bite ordinary feed-dogs, K K, bearing witht-hcirinner ends upon shoul ders of the hub Q, which rocks upon the stud 14, and is provided with an arm, Q, connected by a rod, q, with a crank-lever, Q", pivoted to a stud, 15, projecting from the standard B. Springs 16 tend to hold the dogs in position to bite the rib p when the hub Q is turned in the direction of its arrow. The turning of the hub is effected by the vibration of the lever Q, which is thrown in the direction of its arrow when the frame G rises by the contact of a friction roller or hearing, 17, with the beveled edge of the lever Qf", which friction-roller is carried by a slide, R, moving in guides upon the frame 0, and bearing with its inner end against the edge of the feed-regulating cam D. To prevent any movement of the feed-wheel when the frame 0 descends, the friction-roller 17 is carried by a lever, S, pivoted to the slide B, so as to rise when the roller is brought in contact with the lever Q, but bearing against a positive stop when the frame C rises, so as to force out-ward the lever Q upon the said upward motion of the frame, a spring, 18, tending to hold the lever S against its stop. It will be evident that by varying the movement of the lever Q the movement of the feed wheel I will be correspondingly varied, as

will also the feed of the platen and sheet carried thereby, and as the feed-regulating cam D has an irregular edge the slide R will be projected to a greater or less extent, according to the position of the type-wheel, and will therefore impart a greater or less movement to the lever Q as the frame 0 rises.

To prevent the feed-wheel I" from being carried too far by the momentum imparted to it,

I combine with the said wheel a dog, L, pivoted at the point 0, and biting upon the rib p when its upper end is carried in the direction of its arrow 3, Fig. 4, and I provide means whereby it is thus adjusted to bite upon the rib at the moment the action upon the lever Q? ceases. Thus a second lever, S, is carried by the frame 0 to operate upon a lever, Q,

hung to the pin 15,which lever is connected by a rod, 0, to aslide, R, having a shoulder, 1-, which engages with thelower end of the dog L. As the roller of the lever S passes from the shoulder of the lever Q", the roller of the lever S is brought in contact with the lever Q whereby the slide R is drawn in the direction of its arrow, and the dog L is caused to bite and hold the rib of the feed-wheel as soon as the movement imparted by the lever Q ceases.

In order to permit the platen to be returned to position after the completion of a line, a lever, T, is hung to the pin 14, and is provided with an arm and operating-handle, T, so that it may be brought beneath the ends of the dogs K K, to tilt the latter and unlock them from the rib p, which can then turn freely to permit the feed-wheel to revolve as the platen and its bed are moved in the direction of the arrow 1, Fig. 5, which movement is effected by turning a pulley, U, so as to wind upon it a chain, U, connected to the bed I". The platen His movable upon a dovetailed guide, 19, upon the bed I at right angles to the guide 13, so that after one line of impressions has been made the movement of the platen upon the bed I will carry the sheet into position to receive another line of impressions. This movement of the platen at right angles to the guide 13 is effected by means of a feed-screw, V, turning in brackets carried by the bed I and engaging with a nut,V, Fig.3, carried by the platen. The screw may be turned auto matically, but, as shown, it is provided with a hand-disluV", and with a graduated dislnv and pointer, 3, whereby the movements of the screw maybe made uniform to effect an equal spacing of the lines.

Instead of ascrew,aracl; and worm or lever and pawl or other feeding appliance may be employed.

As the impressions upon the matrix-block are made in a position where it is diliicult for the attendantto ascertain the result, I provide the machine with a duplicate printing apparatus consisting of the small type-wheel D, before alluded to, and feed and bed rollers V WV IV". The rollers are supported by brackets W, attached to the base-plateof the machine, the bedroller X n being directly be- IIO neath the type-wheel D, and travelingibeneath the same with the platen H and carrying a proof-sheet receiving the impressions from the type-wheel D as theframe O is carried downward to bring the type-wheelin contact with the copy paper,which passes from a roll, X, beneath the feed-rollsW W and over the bed-roll VV The paper is fed after the completion of each lineby the movement of the platen H. from the action of the feedscrew V, a cord, 3 being connected to the platen H'tand passing round the rollerW to a drum on the end of the roller W, so that as the platenv is adjusted by the action of the screw V the rollers will be turned to present a fresh paper-surface to the action of the type- 1 wheelD".

The reverse movement of the roller W is permitted by a springpawl, a, engaging with a ratchet, a, upon asleeve carried loosely by the shaft w of the roller. The typewheel D receives its ink from an inking-roll, Y, the shaft of which is supported by an arm, Y, extending from the frame 0.

Instead of the crank-lever hereinbefore, de-

scribed forthrowing down the frame 0 when theiimprint is to be made, I in some instances use other devices-as, for instance, togglelevers NN, arranged as shown in Fig. 12,and operated by a reciprocating rod, N to which a sliding movement may be imparted by any suitable connections put in operation by a key manipulated by the operator.

I do not describe any particular devices for Operating the rod N connected to the togglelevers, as connections suitable for this purpose will depend upon the generalconstruction of the machine, and will be evident to any skilled mechanic.

Although I have described the movable frameO as being hinged at one end or side, it will be evident that it may slide vertically in suitable guides.

In order to produce curved stereotypeplates adapted to be bolted to the faces of printing-cylinders, I producea curved matrix instead of a flat one, as hereinbefore described, by reversing the position of either the type-wheel or the platen, and by using an impression plate or block having a curved surface,.and moving the said block upon a curved guide, as shown in Fig. 13. It will be seen that in said figure the type-wheel Dis arranged at right angles to the position indicated in the preceding figures; that the mattrix-block P has a concave upper face; that the platen H slides longitudinally upon a guide, 19, but that the latter is carried by a bed, I which is fed laterally upon a curved hearing or guide, so as to move the matrixblock laterally beneath the type-wheel in a a curved path, which will always present the surface to be impressed in a position as nearly parallel as possible to the face of the type.

The other changes in the apparatus constituting the arrangement shown in Fig. 13 will be simply changes of position, and need not be particularly specified.

It will-be apparent that the type-wheel maybe of any suitable; dimensions to receive any .requiredlnumber of type or other characters,

and it. willbe seenthat, owing to the facility with which the shaft D and its appurtenances maybe disconnected from the movable frame,

a shaftcarrying type-wheels having different fonts or characters maybe readily substituted forthat. removed, and the character of the imprint may thus be varied without any tedious; or delicate manipulations of parts. some instances it, may be desirable to put the feed-wheel. beneath the base-plate, which, it will be apparent, may be readily done without any change inthe principle of operation.

I have described, the matrix-plate, whether the surfacebe curvedor flat, as consisting of a continuous sheet; or block; but I have found it to be desirable to build the said plate. of

sections 0, each with a rib or tongue o, adapted to a corresponding recess in the side of the adjacent strip or .section, so that a series of sections with straight edges will be collected together to form a practically continuous matrix-block with a flat face, as

shown in Fig. l4; or a series of sections with curved edges maybe collected to form a block with, a curved face, as shown in Fig. 15.

.Whatever may be the form of the face, the

matrix-block may thus be built up to any desired length, and any section may be readily replaced by'another for the purpose of correcting, or changing thematter embossed upon .being provided with asecond type-wheel, the

employment of this duplicatewheel to produce a copy-sheet is not essential. It may bedispensed with.

To permit, the. shaft D to be more readily removed from its bearings, the disk d is provided with a slot, x, through which the end of the shaft may be raised (when the parts are in the position shown in Fig. 6) to bring the shaft to a tilted position, and as the shaft cannot be moved longitudinally to carry the pin .8 out of the cam-groove 7 of the wheel D the latter is provided with a radial slot, w", Figs. 2 andlO, which permits the wheel to be lifted when said slot is in line with the pin 8.

I do not herein make claim to the matrix consisting of a series of separable blocks provided with coinciding projections and recesses,

as I reserve that for a separate application.

Without limiting myself to the precise construction andarrangement of parts shown-and described, I claiml. The combination, in a type-writing or matrix machine, of a frame carrying a movable matrix-block and a swinging frame provided with a type-wheel and movable stops for arresting thetype-wheel in different positions,,a power-driven wheel with frictional connections between the same and the typewheel, and connections, substantially as described, between the. said driven wheel and ICC swinging frame, whereby the latter is forced down by the movement of said wheel after the motion of the type-wheel is arrested, substantially as set forth.

2. The combination of the swinging or movable frame carrying the type-wheel, driving pulley, key H, and connections, substantially as described, between the key and drivingpnlley, whereby the latter is caused to forci bly depress the frame when the key is operated, substantially as set forth.

3. The combination of a pivoted frame can rying the rotating type-wheel, a shaft sup porting the type-wheel and provided with a stop-arm, a series of movable stops arranged in a circle and adapted to be projected separately in the path of the arm, and a drive wheel or pulley rotating in frictional connection with the shaft or arm of the type-wheel, substantially as described.

{1. The combination of the shaft carrying the type-wheel, and stop-arm provided with a lug or projection, and a driving-pulley carried loosely by the shaft and provided with a springring in frictional contact with the lug upon the stoparm, substantially as specified.

5. The combination, with the stationary frame supporting the matrix-block, of a movable frame supporting the type-wheel, drivingpulley, keys, and stops, and connections, substantially as described, between the drivingpulley and the two frames, and key for operating the same, whereby the movable frame is depressed by the rotation of the pulley upon the projection of the said hey, substantially as set forth.

6. The combination of a stationary frame carrying the matrix and a movable frame carrying the stops and provided with detachable bearings for a shaft carrying the type-wheel and driving-pulley, substantially as described.

7. The combination of the stationary frame carrying the matrix-block, the movable frame carrying the type-wheel, stop devices, substantially as described, and driving pulley and cam, lever having a bearing upon the said cam, and a pin or stop movable in respect to the lever to limit the movement thereof, for the purpose set forth.

8. The combination, with the stationary frame and carrier for the matrix, of a second frame pivotally supported at one end by the stationary frame, and detachably supported at the opposite end by said stationary frame, and carrying the typewheel and stop devices, substantially as and for the purpose set forth.

9. The combination, with the stationary frame, of a second frame pivoted at one end and movable at the other end, and carrying the type-wheel, d riving-wheel and stops, and spring supporting the adj ustable end of said second frame and detachable, as and for the purpose set forth.

10. The combination of the stationary frame, movable frame carrying the typewheel, typewheel shaft, and cam, a lever provided with a bearing upon said cam, and a movable pin and key, whereby said pin may be carried to and from the edge of the lever, for the purpose set forth.

11. The combination, with a stationary frame and carriers for a matrix block or sheet, of a pivoted frame carrying a shaft supporting two type-wheels, a series of stopsarranged to arrest the type-wheels at the will of the operator, one type-wheel arranged above the said carriers and the other above a support, substantially as described, for a proof-sheet, as and for the purpose described.

12. The combination,with a stationary frame provided with platens for two independent blocks or sheets, of devices, substantially as described, for feeding each sheet, a swinging frame carrying type-wheels, and means, substantially as described, for automatically reciprocating said second frame to and from said-platens, as and for the purpose set forth.

13. The combination,with the movable bed or support for tllC llldbllX-blOCk, of a movable bed or support for a copy or proof sheet, a movable shaft carrying two printing-wheels, and connections, substantially as described, whereby the feeding movement of one bed is imparted to the other, substantially as set forth.

14. The combination, with the stationary and movable frames, of a support for the ma trix, arranged below the type-wheel carried by the movable frame, a lever and connections, substantially as described, whereby the support is moved according to the movement of said lever, a bearing carried by the movable frame in position to strike said lever, and a cam carried by the movable frame, and constructed to adjust the said bearin g to vary the movement of the lever and "the extent of the feed according to the width of iheimprint, sub-.

stantially as set forth.

15. The combination of the inatriacarrier, a rack connected thereto, feed-wheel gearing with the rack and provided with an annular rib, feed-dogs biting upon said rib, a. lever connected to operate said feed-dogs upon the upward movement of the frame carrying the type-wheel, and a movable lever, T, for unlocking the dogs from the wheel, substantially as described.

16. The combination, with the feed-wheel connected to operate the matrix-carrier, of a dog, L, and connections, substantially as described, whcreby the said dog is caused to bite and arrest the wheel as soon as its feeding movement is completed, substantially as set forth.

17. The combination of the feed wheel, feeding-dogs, and lever Qicon uccted to operate the said feedingdogs, and a stop-dog, L, and operatinglever Q connected therewith, a feed-slide with a bearing arranged to strike the lever Q and a bearing carried by the frame G arranged to strike the lever upon the upward movement of the slide, substantially as set forth.

18. The combination, with the frame carry ing the printing-wheel, of a support or-bed frame, and. provided with a radial slot, :0

for a matrix-block having a curved face, said substantially as setforth.

bed being fitted to and adjustable upon a IntestimonywhreofIhave signed my name curved bearing, substantially as described. I to this specification in the presence of twc sub- 5 19. The combination ofthereversible frame scribing witnesses.

having'detachable' bearin s, shaft D only I y l i ing the type-wheel and fitt ed to said bearings, JAMES LAND O and disk (1, carried by the frame and prcv Witnesses:

vided with a slot, 00*, leverF; having a pin, 8, 7M. 0. HOOTOR,

10 and driving cam wheel D, carried by said O. W. UROASDILL. 

